Peter, Thank you very much. Your suggestions have fixed it. Ken "Peter Dimov" <pdimov@mmltd.net> wrote in message news:<008b01c789b2$21b0fe20$6607a8c0@pdimov2>...

Ken Klose wrote:

...

I've got a singleton object that is trying to run its operator() method in a separate thread, but I'm getting a segfault when I construct the thread object:

PublishedListener::PublishedListener(string directory) { _thread = new thread(*this); // segfault here }

This line makes a copy of *this. It's very likely that this isn't what you want. Use ref(*this) to store a reference, and consider disabling the copy constructor and the assignment operator of the class.